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Old 09-13-2005, 07:20 PM   #1
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Default 3700's or 3800's

i need some new batteries for 1/12 this year and just wondering if anyone has tried the trinity 3700's and the epic 3800's and what differences they have found between them besides the price?
thanks
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Old 09-13-2005, 07:22 PM   #2
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From all the testing SMC has done, it has shown that IBs have a slight edge over the GPs. I have not done personal testing myself, but I would say SMC is a very reputable company. I asked Danny (SMC Rep.) if they ever planned on selling the 3700's, and he said no because the 3800's outperform them. Hope that helps.
-Josh
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Old 09-13-2005, 08:03 PM   #3
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I ran 3800's last Saturday in 1/12, open mod. I wasn't running the 9 or 10 turns some guys run but I couldn't find the bottom of them on runtime. I ran a 13 turn geared higher than stock and still had at least 150 seconds left (30 amps) after the main. I also have some 3600's that continue to get better using them in 6 cell packs.
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Old 09-13-2005, 08:36 PM   #4
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Quote:
Originally Posted by therealshark
i need some new batteries for 1/12 this year and just wondering if anyone has tried the trinity 3700's and the epic 3800's and what differences they have found between them besides the price?
thanks
Pro-Match sold 3800s for a while and felt the performance was not up to the 3700s and discontinued selling them.
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Old 09-13-2005, 08:58 PM   #5
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that is what i was wondering, i have heard that the 3800's fall off after a few runs. but i have not heard anything about the 3700's, good or bad
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Old 09-13-2005, 09:01 PM   #6
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I have both 37's and 38's.
I also think that the 38's have an edge over the GP37's
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Old 09-13-2005, 09:08 PM   #7
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As far as i know, 3800 I had acquired has very low IR (around 1.9 to 2.0) which mean bigger punch.
I also heard that world top drivers personally prefer IB 3800 to GP 3700, but due to companies politics and sponsorship, most of them still use GP 3700.
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Old 09-13-2005, 09:17 PM   #8
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Another interesting thread on GP3700s Vs IB3800s...

Well I personally prefer GP to IB,as GP is the proven brand over the years of mordern RC...Been using them for years,don't see the point of changing brand,unless GP suddenly when the way of sanyo though...
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Old 09-13-2005, 09:24 PM   #9
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i also have been using the GP cells for the last couple of years and have had great luck with them, but still curious about the IBs plus they are cheaper.
but is this one of those things ....you get what you pay for....
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Old 09-13-2005, 09:41 PM   #10
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Maybe you should ask Pro-Match what they think now.
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Old 09-13-2005, 09:47 PM   #11
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Here is my prediction: over the next few weeks you will hear a LOT of talk about the IB's, and mark my words (remember this post), it will be very positive.
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Old 09-13-2005, 09:59 PM   #12
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Quote:
Originally Posted by Ben.C
Another interesting thread on GP3700s Vs IB3800s...

Well I personally prefer GP to IB,as GP is the proven brand over the years of mordern RC...Been using them for years,don't see the point of changing brand,unless GP suddenly when the way of sanyo though...

If there would be no companies trying to come out with better cells then we would still be running overpriced Sanyo cells. For you to say that GP has been around for years is pretty funny. They have been the cell of choice for only 3 and a half years. The IB technology is new and different and is now being copied by other cell manufacturers so for the 6 or 7 months IB has been into the RC racing scene they seem to have made a good impact.
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Old 09-13-2005, 10:09 PM   #13
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[QUOTE=Danny/SMC] For you to say that GP has been around for years is pretty funny. They have been the cell of choice for only 3 and a half years. QUOTE]


Right...3 and a half plus years is also called Years...1 is call year,2 or more is called years...Thats what my teacher in school taught me...
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Old 09-14-2005, 05:16 AM   #14
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Besides the brand of GP 3700 or IB 3800, you should consider which matching company you buy from. If you said one brand are not good, maybe you should consider also which matcher are those batts came from. This is also a factor why the batts are not performing well.
I tried already Peak, Trinity, Reedy, Pro Match, SMC and other cheap brands. And no flattering to Danny, but SMC is the best one until now.
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Old 09-14-2005, 05:52 AM   #15
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Ok let me explain guys, well, I guess Danny won't like that....

Whilst matching on a Turbomatcher with 30A:
GP 3700: 450-480 seconds IB 3800: 485-515 seconds
The IB/Intellect cells compared to the GP's have a higher internal resistance, IB 1,9 to 2,0, GPs 1,2-1,6, which means less punch.
But, the IB has slightly more voltage during a cycle, which means more top speed. Well, it should be like that, but on the track, thats a different story coming to later.

Whilst matching lots of matchers here had problems with blowing up IB cells whilst matching, they need a lower peak detect than GP's, as they do not like heat and repeaking specially.

On the track:
When we used the IB's for the first time, the first 2 or 3 laps were awesome, but than they simply sucked. Punch went down really quickly and after 3 minutes it even went worse, no punch at all. The first run on them, we had about 20 seconds more runtime than GP's, but as said above they felt like chewing-gum at the end....

After two runs we took the cells apart and matched them again....
Voltage on the matcher still looked good, but runtime went down by 40-50 seconds!!!!

We than took brand new GP's for two runs....
Punch was exactly the same than with IB's in the beginning, but the punch stayed much more equal for the runs, so laptimes were faster after two or three laps. Specially after 3 minutes laptimes showed 2 tenth faster, as they still feel punchy at the end...

After two runs on them, we also took them apart and matched them. This showed almost the same numbers as a new pack!

We also ran those IB packs again for a couple of times and they get worse and worse, even some cells or completely dead...

The conclusion of all this is, that GP's are still they way to go....much more consistent and more lifetime.
As far as I know Oscar from Orion has tested the IB's as well, I wonder why they do not use them Sure not, because they are better than GP's...
But who knows, IB is still very young, I am sure they will bring some more uprades
Take care,
Markus
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